AIX - Quorum - VGDA (Volume Group Descriptor Area)
Volume group descriptor area (VGDA) is an area on the disk that contains
Information pertinent to the volume group that physical volume belongs to. It
Also includes information about properties and status of all physical and
Logical volumes that are part of the volume group. The information from VGDA
is used and updated by LVM commands. There is at least one VGDA per
Physical volume. Information from VGDAs of all disks that are part of the
Same volume group must de identical. VGDA internal architecture and location on the disk depends on the type of the volume group (original, big, or
Scalable).
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